expŏsĭtĭo Copy link Outline I. An exposing of an infant , Justin. 1, 4, 9; 1, 5, 4.— ...II. Of speech.A. A setting forth, exposition, an exhibiting ...B. A definition, explanation • expŏsĭtĭo, ōnis, f. [expono]. I. An exposing of an infant (post-class.), Justin. 1, 4, 9; 1, 5, 4.— II. Of speech. A. A setting forth, exposition, an exhibiting, showing; a narration: cursum contentiones magis requirunt; expositiones rerum tarditatem, Cic. Or. 63, 212; Auct. Her. 1, 10, 17; 1, 3, 4; 2, 2, 3; Cic. de Or. 3, 53, 203; Quint. 4, 1, 35; 4, 2, 2 et saep.— B. A definition, explanation: duplices summi boni, Cic. Fin. 5, 8, 21 (cf. exponere, id. ib. § 22 Madv.; and 5, 5, 14, p. 635).